the answer is one nobody wants to hear: you're a pilot--keep your own logbook. If you rely on ARMS to track something that ARMS doesn't track (PIC time) you're going to be disappointed in 20 years when you go to fill out your airline apps and you're concerned about your times being 100% exact.

Otherwise, just wag it like everyone else does. If you have the mins, don't sweat the details I guess.